Here is something cool!  Check out Smappee.  Odd name but some great whole home monitoring systems.  The Energy Monitor will watch your electricity use, costs and standby power.  It even splits out some of the individual loads throughout your home based on the unique energy signature for each device.  There is a version specifically designed to work with solar energy that provides real-time use, costs and the yield of your solar panels and a Pro version for multiple sites and industrial-grade features.  Last but not least: the Gas & Water monitor shows real-time gas and/or water consumption and will send alerts if it senses a leak.